Draft attachment for plows



(No Model.)

G. RICHTER.

DRAFT ATTACHMENT FOR FLOWS.

No. 427,481. Patented May 6, 1890.

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"UNITED STATES PATENT OFFICE.

GERHARD RICHTER, OF MELROSE, MINNESOTA.

DRAFT ATTACHMENT FOR PLOWS.

SPECIFICATION forming part of Letters Patent No. 427,481, dated May 6, 1890.

Application filed February 8, 1890. Serial No. 389,698. (No model.)

To all whom, it may concern:

Be it known that I, GERHARD RICHTER, a citizen of the United States of America, residing at Melrose, in the county of Stearns and State of Minnesota, have invented certain new and useful Improvements in Draft Attachments for Flows; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to draft attachments for plows; and it consists in the improved construction, hereinafter described and set forth, whereby a simple and efficient draft device is provided.

In the accompanying drawings, Figure 1 is a side view of a plow-beam having my improvements applied thereto. Fig.2 is a detail plan view, and Fig. 3 is a detail section on the dotted line 00 0c of Fig. 2.

The forward end of the beam A is laterally enlarged to form a curved head at, having a vertical curved slot b. A yoke B has its upper and lower members, respectively, above and below the beam and extends across the slot in the same, and said members coincident with said slot are perforated vertically. These members are connected to the beam by means of a bolt 0, which passes through the same and through a slightly-elongated opening in the beam. A clip O has its parallel portions (1 (Z pivotally connected to the head of the beam, while its front portion c is presented by a head, in which is seated one end of a swivel-bolt f, the other end of which is looped for the attachment of a longitudinal rod D, extending through an eye g, formed in the shoulder 71 on the lower end of which The forward end. of the rod D is looped for the attachment of the draft devices. The shank It extends up through the perforations in the two members of the yoke and through the slot between. The front vertical portion of the yoke is provided with a lugj, at which point the yoke is provided with a screw-threaded perforation through which passes a threaded bolt 70, the front end of which bites against the front curved face of the head.

To adjust the caster to the desired height it will only be necessary to either raise or lower the shank in the members and headslot and thereafter tighten the bolt 70, so that one side of the perforations of the members will rigidly clamp the shank against the inner face of the head, the slightly-larger diameter of said perforations, together with-that of the pivot-bolt c, enabling such clamping movement of the yoke. Of course such clam ping action likewise secures the yoke relative to the head, no matter what its position relative to the head may be, so that the casterwheel and draft devices will be adjusted to either side to regulate either inland or outside draft. \Vhat is more, the location and arrangement of the rod D transfer the draftstrain from the end of the beam to the center back or bend. The variation of the position of the caster of course regulates the depth.

I claim The combination of the beam having laterally-extended curved head having a curved slot, a yoke having upper and lower members pivoted to bear at rear of said head by a bolt passing through slightly-elongated 

